Hitachi AirCore 700 Installation & Maintenance Manual page 25

5. Connection between Demand Response Enabling Device (DRED) and Outdoor Unit
When the input terminals DRM2 and SC are short-circuited, the compressor is limited the load to 50%.
When the input terminals DRM3 and SC are short-circuited, the compressor is limited the load to 75%.
DRED
(Field supplied)
DM1
DM2
DM3
CAUTION
!
•
Please carefully file indoor and outdoor unit manual away for future reference.
Terminal block
DRM1
Wiring Diagram between DRED and Outdoor Unit
Outdoor Unit
CN2-1
CN2-2
SC
DRM2
CN1-1
CN1-3
DRM3
-21-
PCBA
PAC:CN2
PAC:CN1